An instrument system for hemorrhoid injection

Abstract

The present invention relates to an instrument system for hemorrhoid injection, comprising an anoscope (100) and an injection gun (200); the anoscope (100) is provided with an outer sleeve (1), an inner sleeve (2) and an inner plug (3); the outer sleeve (1) is provided with an outer sleeve window (12) on its side wall, and the inner sleeve (2) is provided with an inner sleeve window area (22) protruding outward and provided with a screening hole (221) on its side wall; the injection gun (200) is provided with an injection gun handle (4), a barrel (5) and an injector fixing assembly (6), the injector fixing assembly (6) comprising a syringe slot (61), a syringe fixing member (62) and a piston fixing member (63); the piston fixing member (63) is provided with a rack (631) at its lower end, and is driven by a T-type spur gear (8), a T-type bevel gear (9), an electric bevel gear (10) and a motor (20). The present invention helps to screen all lesions during hemorrhoid injection surgery, achieve accurate, stable and standardized injection, and obtain better injection effect.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to an instrument system for hemorrhoid injection. Background Art

[0002] Hemorrhoid injection therapy is to inject drugs directly into the hemorrhoids with a syringe, so that the hemorrhoids will necrotize, harden or shrink to achieve the purpose of treatment. Hemorrhoid injection therapy can relieve the patient's pain, has a short course of treatment, is convenient, highly safe, and has good efficacy. It is a commonly used clinical treatment for internal hemorrhoids.

[0003] Anoscope is a commonly used tool for the treatment or examination of anorectal diseases such as hemorrhoid injection. The traditional anoscope consists of a trumpet-shaped sleeve with two openings at both ends and an inner plug with a guide head. The sleeve and the inner plug are each provided with a handle. During hemorrhoid injection, the anoscope can help dilate the rectum and expose the hemorrhoids at the tip of the sleeve for the operator to perform the injection operation.

[0004] There are also documents reporting improved anoscopes. For example, patent document CN212037466U discloses a multifunctional anoscope, which includes a lens barrel and a lens core; the lens barrel is a cylindrical structure with two ends open; the lens barrel includes a front end of the lens barrel, a rear end of the lens barrel, a film groove, an observation film and at least one observation window; the front end of the lens barrel is larger than the rear end of the lens barrel and is funnel-shaped; the observation window is located between the front end and the rear end of the lens barrel; the lens core can be inserted into the lens barrel for use, and the lens barrel also includes a lens handle movably connected to the front end of the lens barrel. Its advantages are: the rectangular observation window surrounded by four sides can provide the observer with an excellent observation field of view, effectively increasing the range of the observation field of view; the observation window is covered with an ultra-thin PET protective film, which can protect the patient's anus; the lens barrel and the lens handle are movably connected, which is convenient for reducing the packaging volume and improving economic benefits. Patent document CN112773319A discloses an anoscope that can accurately select and cut hemorrhoidal tissue, including an anus entry component, the anus entry component includes an anus entry top, an anus entry end and a terminal expansion portion, the area between the anus entry top and the anus entry end is correspondingly divided into at least three grids, at least one of which is a fixed connection piece used to fix the anus entry top and the anus entry end, and all the remaining grids are detachably connected between the anus entry top and the anus entry end through a baffle. Its advantages are: the exposure port is selectively enlarged by a detachable baffle to expose the hemorrhoidal tissue to be cut, making the cutting more precise; by selecting disassembly and reassembly, it can be selectively blocked to protect normal tissue, making the surgical cutting range selection more precise. Patent document CN111973132A discloses an adjustable anoscope, including an anoscope body, an adjustable inner support sleeved on the inner side of the anoscope body, and an anal plug used to assist the introduction of the anoscope body. Its advantages are: an adjustment slot is provided on the inner wall of the lens barrel of the anoscope body, and correspondingly, an adjustment card is provided on the inner support barrel of the adjustment inner support. The user can freely adjust the window position according to needs to find the best lesion inspection position and lesion removal position, and the adjustment slot and the adjustment card cooperate more reliably, avoiding the risk of incorrect lesion position removal due to displacement, making the operation safer.

[0005] However, in actual hemorrhoid injection surgery, finding the lesion is a key link. Larger hemorrhoids are easy to be found, while smaller hemorrhoids are sometimes missed, resulting in incomplete treatment. The anoscope disclosed in the above patent document is still lacking in thoroughly checking small hemorrhoids. Secondly, the accurate injection of the drug is also very important. Injection that is too deep or too shallow cannot effectively harden and fall off the hemorrhoids. Moreover, the current operation of the operator holding a syringe to inject the drug is inevitably unstable, especially for beginners, which is easy to cause the injection position, depth or injection dose to be inappropriate, and will inevitably affect the surgical effect. Therefore, there is an urgent need for an anoscope device that helps to check all lesions and accurately inject to improve the surgical effect, but there is no relevant report at present. Summary of the invention

[0006] The purpose of the present invention is to address the deficiencies in the prior art and to provide an anoscope device that helps to identify all lesions, perform precise injections, and improve surgical results.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] An instrument system for hemorrhoid injection, comprising an anoscope and an injection gun; the anoscope is provided with an outer sleeve, an inner sleeve and an inner plug; the outer sleeve side wall is provided with an outer sleeve window, the inner sleeve side wall is provided with an inner sleeve window area protruding outward, the length of the inner sleeve window area is equal to the length of the outer sleeve window, the width of the inner sleeve window area is less than the width of the outer sleeve window, the inner sleeve window area is provided with a plurality of rows of screening holes, and the size of each row of screening holes is different; the injection gun is provided with an injection gun handle, a barrel and a syringe fixing assembly, the syringe fixing assembly comprises a syringe clamping groove for fixing a syringe, a syringe fixing piece for fixing a syringe handle and a piston fixing piece for fixing a piston handle; a rack is provided at the lower end of the piston fixing piece, the rack is meshed with the longitudinal part of a T-type spur gear, the transverse part of the T-type spur gear is meshed with the longitudinal part of a T-type bevel gear, the transverse part of the T-type bevel gear is meshed with an electric bevel gear, the electric bevel gear is driven by a motor, and a switch button and a direction button for controlling the motor are arranged on the injection gun handle.

[0009] Preferably, in the assembled state, the outer wall of the inner sleeve and the outer wall of the outer sleeve are matched and fit together.

[0010] Preferably, the size of the screening hole is selected from: 3mm, 6mm, 9mm and 12mm.

[0011] Preferably, the screening holes have two to four rows.

[0012] Preferably, the edge of the outer sleeve window is beveled and the window near the inside of the outer sleeve window is larger than the window near the outside, and the edge of the inner sleeve window area is beveled and the window near the inside of the inner sleeve window area is larger than the window near the outside.

[0013] Preferably, the inner plug is a conical structure, and fits with the inner wall of the outer sleeve in an assembled state.

[0014] The present invention has the advantages that:

[0015] 1. The present invention provides an instrument system for hemorrhoid injection, which integrates an anoscope and an injection gun. The injection gun is used for the injection of hardener. Compared with the injection with a handheld syringe, on the one hand, it is more stable, can fix the injection volume, and realize standardized operation. On the other hand, it can avoid the hand from obstructing the field of vision during injection. Thus, the difficulty of hardener injection is reduced and the injection effect is improved.

[0016] 2. The anoscope is equipped with two sleeves, namely an outer sleeve and an inner sleeve. The outer sleeve is used to find the area where hemorrhoids are concentrated and fix it, and the inner sleeve is used to conduct a detailed inspection of the hemorrhoid area to ensure that both large and small hemorrhoids can be found and treated, ensuring the thoroughness of the operation.

[0017] 3. The outer wall of the inner sleeve is matched and fitted with the outer wall of the outer sleeve. The inner sleeve window area of ​​the inner sleeve protrudes from the outer wall of the inner sleeve. Therefore, the inner sleeve window area can be embedded in the outer sleeve window of the outer sleeve and fit on the mucosa, thereby giving enough pressure to the hemorrhoid area to make the hemorrhoids appear.

[0018] 4. The inner sleeve window area is provided with several rows of screening holes, and each row of screening holes is of different sizes, which is convenient for the exposure of hemorrhoids of different sizes, especially to ensure that the hemorrhoids can be fully exposed and in a certain squeezed state, so that it is easier to insert the needle when injecting the hardener, and the squeezing effect is more conducive to the diffusion of the hardener, making the hardener more evenly distributed in the hemorrhoid body, and promoting the complete and thorough hardening and atrophy of the entire hemorrhoid.

[0019] 5. The length of the inner sleeve window area is the same as that of the outer sleeve window, and its width is smaller than that of the outer sleeve window. This design allows the operator to complete hemorrhoid screening by only radial rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 It is a structural schematic diagram of an instrument system for hemorrhoid injection according to the present invention.

[0021] Attached Figure 2 It is a structural schematic diagram of the inner sleeve.

[0022] Attached Figure 3 It is a schematic diagram of the structure of an injection gun.

[0023] Attached Figure 4 This is a schematic diagram of the internal structure of the injection gun.

[0024] Attached Figure 5 This is the assembly drawing of the outer sleeve and inner bolt in use.

[0025] Attached Figure 6 It is an assembly drawing of the outer sleeve and the inner sleeve in use.

[0026] Attached Figure 7 This is the assembly diagram of the injection gun and syringe.

[0027] Attached Figure 8 It is a schematic structural diagram of an inner sleeve in another device system for hemorrhoid injection of the present invention. DETAILED DESCRIPTION

[0028] The specific implementation modes provided by the present invention are described in detail below with reference to the accompanying drawings.

[0029] The reference numerals and components involved in the drawings are as follows:

[0030]

[0031]

[0032] Example 1

[0033] See also Figure 1 , Figure 1 It is a schematic diagram of the structure of an instrument system for hemorrhoid injection of the present invention. The instrument system includes an anoscope 100 and an injection gun 200. The anoscope 100 is provided with an outer sleeve 1, an inner sleeve 2 and an inner plug 3. The outer sleeve 1 is a truncated cone-shaped structure with two ends open, with a small diameter at the head end and a large diameter at the tail end, an outer sleeve handle 11 is provided at the edge of the tail end, and an outer sleeve window 12 is provided on the side wall of the outer sleeve 1. The inner sleeve 2 is also a truncated cone-shaped structure with two ends open, with a small diameter at the head end and a large diameter at the tail end, an inner sleeve handle 21 is provided at the edge of the tail end, and an inner sleeve window area 22 is provided on the side wall of the inner sleeve 2. The inner plug 3 is a conical structure, with an inner plug handle 31 provided at the tail end, and a hemispherical guide head 32 at the head end.

[0034] See also Figure 2 , Figure 2 2 is a schematic diagram of the structure of the inner sleeve. The inner sleeve window area 22 protrudes outward relative to the side wall of the inner sleeve 2, and the length of the inner sleeve window area 22 is equal to the length of the outer sleeve window 12, and the width is smaller than the width of the outer sleeve window 12. The inner sleeve window area 22 includes two rows of screening holes 221, and the diameters of the two rows of screening holes 221 are different.

[0035] See also Figure 3 , Figure 3: is a schematic diagram of the structure of an injection gun. The injection gun 200 is provided with an injection gun handle 4, a barrel 5 and a syringe fixing assembly 6. The barrel 5 is located above the injection gun handle 4, and the syringe fixing assembly 6 is located above the barrel 5. The injection gun handle 4 is also provided with a switch button 71 and a direction button 72. The syringe fixing assembly 6 includes a syringe card slot 61, a syringe fixing member 62 and a piston fixing member 63. The syringe card slot 61 is fixedly provided on the barrel 5, and the length direction of the syringe card slot 61 is consistent with the length direction of the barrel 5, and the cross section of the syringe card slot 61 is semicircular. The syringe fixing member 62 is also fixedly provided on the barrel 5, and is also a card slot structure, which is used to fix the syringe handle at the tail end of the syringe barrel. The piston fixing member 63 is also a card slot structure, which is used to fix the piston handle at the tail end of the syringe piston. The barrel 5 is provided with a guide groove 51 in the section between the syringe fixing member 62 and the piston fixing member 63, and a scale 52 is provided along the guide groove 51.

[0036] See also Figure 4 , Figure 4 Schematic diagram of the internal structure of the injection gun. A rack 631 is provided at the lower end of the piston fixing member 63, and the rack 631 is located inside the cylinder 5. A T-shaped spur gear 8, a T-shaped bevel gear 9 and an electric bevel gear 10 are also provided inside the cylinder 5. The rack 631 meshes with the longitudinal portion of the T-shaped spur gear 8, the transverse portion of the T-shaped spur gear 8 meshes with the longitudinal portion of the T-shaped bevel gear 9, and the transverse portion of the T-shaped bevel gear 9 meshes with the electric bevel gear 10, and the electric bevel gear 10 is driven by the motor 20.

[0037] The method of using the device system for hemorrhoid injection of the present invention is as follows: Figure 5-7 , Figure 5 This is the assembly drawing of the outer sleeve and inner bolt in use. Figure 6 This is the assembly drawing of the outer sleeve and the inner sleeve in use. Figure 7It is an assembly diagram of an injection gun and a syringe. When performing hemorrhoid injection, the patient is placed in a lateral position or lithotomy position, and the anus is routinely disinfected and locally anesthetized; the inner plug 3 is inserted into the outer sleeve 1, and the inner walls of the two are seamlessly fitted, and then the inner plug handle 31 is held, and the guide head 32 is used as the tip to insert the anus to a suitable depth, and the inner plug 3 is taken out; the outer sleeve 1 is rotated to adjust the position of the outer sleeve window 12 to find the exposed position of the internal hemorrhoids. For more serious patients, there are often multiple internal hemorrhoids. In order to accurately find smaller internal hemorrhoids to prevent omission, the inner sleeve 2 is inserted into the outer sleeve 1, and the inner sleeve window area 22 of the inner sleeve 2 is aligned with the outer sleeve window 12 of the outer sleeve 1 during insertion. As the inner sleeve 2 is pushed forward, the inner sleeve window area 22 is embedded in the outer sleeve window 12; circumferential rotation, large and small hemorrhoids will protrude from the screening holes 221 of different sizes one by one and be screened out, and each hemorrhoid is injected under direct vision. During injection, after the syringe 300 has sucked the medicine, the syringe 301 of the syringe 300 is placed in the syringe slot 61, the syringe handle 302 is placed in the syringe fixture 62, and the piston handle 303 is placed in the piston fixture 63; the inner sleeve 2 is operated to press the rectum, and the injection gun handle 4 is held to pierce the needle 304 into the hemorrhoids. To determine whether the appropriate depth is inserted, the direction button 72 is adjusted to suction, and the switch button 71 is turned on. If blood is returned in the syringe 301, it means that the hemorrhoids have been pierced, and then the direction button 72 is adjusted to injection, and the volume of the injected medicine is observed through the scale 52 on the cylinder 5. After the appropriate amount is reached, the switch button 71 is turned off. When the treatment of all hemorrhoids is completed, the inner sleeve 2 is taken out, the inner plug 3 is inserted into the outer sleeve 1, and then taken out together.

[0038] It should be noted that the instrument system for hemorrhoid injection of the present invention integrates an anoscope 100 and an injection gun 200. The injection gun 200 is used for the injection of a hardener. Compared with the method of injecting with a handheld syringe, on the one hand, it is more stable, can fix the injection volume, and realize standardized operation. On the other hand, it can avoid the hand from obstructing the field of vision during injection, thereby reducing the difficulty of hardener injection and improving the injection effect. The instrument system for hemorrhoid injection of the present invention, the anoscope 100 is provided with two sleeves, namely an outer sleeve 1 and an inner sleeve 2. The outer sleeve 1 is used to find the area where hemorrhoids are concentrated and fix it. The inner sleeve 2 is used to perform a detailed investigation of the hemorrhoid area to ensure that large and small hemorrhoids can be found and injected for treatment, thereby ensuring the thoroughness of the operation. Wherein, the outer wall of the inner sleeve 2 is matched and fitted with the outer wall of the outer sleeve 1, and the inner sleeve window area 22 of the inner sleeve 2 protrudes from the outer wall of the inner sleeve 2, so the inner sleeve window area 22 of the inner sleeve 2 can be embedded in the outer sleeve window 12 of the outer sleeve 1, so that the inner sleeve window area 22 gives enough pressure to the hemorrhoid area, ensuring that it can be fitted on the mucosa, so that the hemorrhoids are exposed. The inner sleeve window area 22 is provided with two rows of screening holes 221, and the sizes of the two rows of screening holes 221 are different, so that it is convenient to expose hemorrhoids of different sizes, especially to ensure that the hemorrhoids can be fully exposed and in a certain extrusion state, so that it is easier to insert the needle when injecting the hardener, and it is more conducive to the diffusion of the hardener under the extrusion effect, so that the distribution of the hardener in the hemorrhoid body is more uniform, and the whole hemorrhoids can be promoted to be completely and thoroughly hardened and atrophied. According to clinical experience, the screening hole 221 can be selected from the following models: diameter 3mm, 6mm, 9mm and 12mm. Preferably, the edge of the outer sleeve window 12 is beveled and the window of the outer sleeve window 12 near the inside is larger than the window near the outside, and the edge of the inner sleeve window area 22 is beveled and the window of the inner sleeve window area 22 near the inside is larger than the window near the outside, so that the insertion and removal of the inner sleeve 2 are easier. The inner plug 3 is a conical structure, which fits the outer sleeve 1 after assembly, which increases the stability when pushing or removing.

[0039] Example 2

[0040] The device system for hemorrhoid injection in this embodiment is basically the same as the device system for hemorrhoid injection in Example 1, except that: Figure 8 , Figure 8 2 is a schematic diagram of the structure of an inner sleeve in another device system for hemorrhoid injection of the present invention, wherein the inner sleeve 2 has three rows of screening holes 221 in the inner sleeve window area 22. That is, the number and quantity of the screening holes 221 are not limited to the embodiment of the present invention, and the arrangement thereof can ensure accurate screening of hemorrhoids of different sizes and proper squeezing of the hemorrhoids.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the method of the present invention. These improvements and supplements should also be regarded as the scope of protection of the present invention.

Claims

1. An instrument system for hemorrhoid injection, characterized in that: The invention comprises an anoscope (100) and an injection gun (200); the anoscope (100) is provided with an outer sleeve (1), an inner sleeve (2) and an inner plug (3); the outer sleeve (1) is provided with an outer sleeve window (12) on its side wall, the inner sleeve (2) is provided with an inner sleeve window area (22) protruding outward on its side wall, the length of the inner sleeve window area (22) is equal to the length of the outer sleeve window (12), the width of the inner sleeve window area (22) is smaller than the width of the outer sleeve window (12), the inner sleeve window area (22) is provided with a plurality of rows of screening holes (221), and the size of each row of screening holes (221) is different; the injection gun (200) is provided with an injection gun handle (4), a barrel (5) and a syringe fixing assembly (6), the syringe fixing assembly (6) comprises a syringe clamping groove (61) for fixing a syringe, a syringe fixing member (62) for fixing a syringe handle and a piston handle. The piston fixing member (63) is provided with a rack (631) at the lower end of the piston fixing member (63), the rack (631) is meshed with the longitudinal part of the T-shaped spur gear (8), the transverse part of the T-shaped spur gear (8) is meshed with the longitudinal part of the T-shaped bevel gear (9), the transverse part of the T-shaped bevel gear (9) is meshed with the electric bevel gear (10), the electric bevel gear (10) is driven by a motor (20), a switch button (71) and a direction button (72) for controlling the motor (20) are arranged on the injection gun handle (4), the edge of the outer sleeve window (12) is beveled and the window of the outer sleeve window (12) close to the inside is larger than the window close to the outside, the edge of the inner sleeve window area (22) is beveled and the window of the inner sleeve window area (22) close to the inside is larger than the window close to the outside, and the inner plug (3) is a conical structure, which fits with the inner wall of the outer sleeve (1) in the assembled state.

2. The device system for hemorrhoid injection according to claim 1, characterized in that: The size of the screening hole (221) is selected from: 3mm, 6mm, 9mm and 12mm.

3. The device system for hemorrhoid injection according to claim 1, characterized in that: The screening holes (221) have two to four rows.

Images